TenShock Quick Change motor adapter for 37mm diameter motors

TenShock Quick Change motor adapter for 37mm motors.
 
See picture two for this installed onto a motor.

This works by screwing it onto your current motor mount, then you can use the top clamping screw to tighten the motor into the clamp from the top. This helps to make a quick release of the motor with one top screw that's easily accessed, without having to fight the front screws. 

Note: Motor not included.